"Halt" or "Keep away" is made by raising the right hand, palm to the front, and moving it forward and back. "Come" is made by raising right hand, back to front, and beckoning with a wide sweep forward and in again, repeating. For distance two-arm signals are better than one-arm; and Scouts should have a short code in two-arms. Both arms stretched wide may mean "Go back" or "Halt"; both arms partly dropped may mean "No," partly raised may mean "Yes." And so on. These were plain signals. Note 49, page 141: A sprain, such as a sprained wrist or ankle, for instance, is a serious injury, and must not be made light of or neglected. If not properly and promptly treated, it is likely to leave the cords or ligaments permanently weak. When treatment may begin at once, the injured joint should be laid bare, even if by cutting the shoe instead of unlacing it and pulling it off, and the coldest water should be applied lavishly. The joint may well be plunged into an icy spring or stream, or held under a running faucet. If the joint can be kept elevated, so that the blood will not flow into it so readily, so much the better. If some distance has to be covered before the injured person arrives in reach of treatment, the shoe might as well remain on, to act as a bandage and a support--although it probably will have to be cut off later. If the joint is not the ankle joint, a tight, stout bandage should be fastened around. Nobody should try to step upon his sprained ankle or use his sprained wrist, or whatever joint it may be. After swelling has set in very hot water is said to be superior to very cold water; the very hot and the very cold have much the same effect, anyway. But the water application should be kept up for at least twenty-four hours, and the wounded place must not be moved one particle for several days. When the time comes to move it, it should be wrapped with a supporting bandage. General Ashley probably had a hard time with his neglected ankle. CHAPTER XIII Note 50, page 147: The cache (which is a French word and is pronounced "cash") or hiding-place is a genuine scout invention. Long ago the trappers and traders of the plains and mountains, when they had more pelts or more supplies than they could readily carry, would "cache" them. The favorite way was to dig a hole, and gradually enlarge it underground, like a jug. The dirt was laid upon a blanket and emptied into a stream, so that it would not be noticed. Then the hole was lined with dry sticks or with blankets, the pelts or supplies were packed inside, and covered with buffalo robe or tarpaulin; and the earth was tamped in solidly. Next a fire was built on top, that the ashes might deceive Indians and animals. Or the tent or lodge was erected over the spot for a few days. At any rate, all traces of the hiding-place were wiped out, and landmarks were noted well.